#physiology multiple choice question

Cardiac Cycle and Regulation

Rapid passive ventricular filling occurs mainly due to:

Correct option is B, Pressure gradient. In Cardiac Cycle and Regulation, the accurate description is Pressure gradient, and that is what you should commit to memory. Keep the definition tight and the role clear — the functional job described in the stem is exactly what Pressure gradient does in Cardiac Cycle and Regulation. Then Pressure gradient is the answer you can defend. Check yourself by covering the options and writing the answer first, then matching the letter — that builds confidence. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Pressure gradient. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Cardiac Cycle and Regulation

Isovolumetric relaxation occurs when:

Pick B: Semilunar valves close. Thinking about Cardiac Cycle and Regulation in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: Semilunar valves close is the option that correctly names the structure, process, or principle asked for in Cardiac Cycle and Regulation. Hence Semilunar valves close is correct. Treat this as a building block for the rest of Cardiac Cycle and Regulation; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Cardiac Cycle and Regulation

Which phase contributes maximum blood ejection?

The correct answer is C: Rapid ventricular ejection. In Cardiac Cycle and Regulation, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, Rapid ventricular ejection is the option that correctly names the structure, process, or principle asked for in Cardiac Cycle and Regulation. That is why Rapid ventricular ejection is the option that holds up when you check it against basic physiology. When you revise, say the answer out loud with one short reason attached; that sticks better than rote lists. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Synapse

Metabotropic receptors differ from ionotropic receptors because they:

Pick C: Use G-proteins and second messengers. Thinking about Synapse in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: cause and effect line up with Use G-proteins and second messengers — that is the mechanism or reason the stem is pointing to. Hence Use G-proteins and second messengers is correct. Treat this as a building block for the rest of Synapse; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Action potential

Generator potential is best described as:

The correct answer is C: Graded potential in sensory receptor. In Action potential, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, excitable-cell physiology turns on membranes, ions, and signalling steps, and Graded potential in sensory receptor captures the correct piece of that story. That is why Graded potential in sensory receptor is the option that holds up when you check it against basic physiology. When you revise, say the answer out loud with one short reason attached; that sticks better than rote lists. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Action potential

During absolute refractory period, neuron:

Cannot generate another action potential (B) is the right choice. This sits at the heart of Action potential: the wording points straight to what is happening in the tissue or organ system. A useful study habit is to ask what the structure or process is for: excitable-cell physiology turns on membranes, ions, and signalling steps, and Cannot generate another action potential captures the correct piece of that story. That reasoning supports Cannot generate another action potential. One solid sentence about why this works is enough for recall — you do not need a long essay for every MCQ. When you practise, cover the choices first, write Cannot generate another action potential from memory, then reveal the letter — that habit builds real recall for Action potential.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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